Merge changes from topic "tegra-downstream-08282020" into integration
* changes:
Tegra: common: disable GICC after domain off
cpus: denver: skip DCO enable/disable for recent SKUs
diff --git a/common/fdt_fixup.c b/common/fdt_fixup.c
index d518eb2..980e60d 100644
--- a/common/fdt_fixup.c
+++ b/common/fdt_fixup.c
@@ -1,5 +1,5 @@
/*
- * Copyright (c) 2016-2019, ARM Limited and Contributors. All rights reserved.
+ * Copyright (c) 2016-2020, ARM Limited and Contributors. All rights reserved.
*
* SPDX-License-Identifier: BSD-3-Clause
*/
@@ -14,15 +14,20 @@
* that.
*/
+#include <errno.h>
+#include <stdio.h>
#include <string.h>
#include <libfdt.h>
+#include <arch.h>
#include <common/debug.h>
+#include <common/fdt_fixup.h>
+#include <common/fdt_wrappers.h>
#include <drivers/console.h>
#include <lib/psci/psci.h>
+#include <plat/common/platform.h>
-#include <common/fdt_fixup.h>
static int append_psci_compatible(void *fdt, int offs, const char *str)
{
@@ -210,3 +215,165 @@
return 0;
}
+
+/*******************************************************************************
+ * fdt_add_cpu() Add a new CPU node to the DT
+ * @dtb: Pointer to the device tree blob in memory
+ * @parent: Offset of the parent node
+ * @mpidr: MPIDR for the current CPU
+ *
+ * Create and add a new cpu node to a DTB.
+ *
+ * Return the offset of the new node or a negative value in case of error
+ ******************************************************************************/
+
+static int fdt_add_cpu(void *dtb, int parent, u_register_t mpidr)
+{
+ int cpu_offs;
+ int err;
+ char snode_name[15];
+ uint64_t reg_prop;
+
+ reg_prop = mpidr & MPID_MASK & ~MPIDR_MT_MASK;
+
+ snprintf(snode_name, sizeof(snode_name), "cpu@%x",
+ (unsigned int)reg_prop);
+
+ cpu_offs = fdt_add_subnode(dtb, parent, snode_name);
+ if (cpu_offs < 0) {
+ ERROR ("FDT: add subnode \"%s\" failed: %i\n",
+ snode_name, cpu_offs);
+ return cpu_offs;
+ }
+
+ err = fdt_setprop_string(dtb, cpu_offs, "compatible", "arm,armv8");
+ if (err < 0) {
+ ERROR ("FDT: write to \"%s\" property of node at offset %i failed\n",
+ "compatible", cpu_offs);
+ return err;
+ }
+
+ err = fdt_setprop_u64(dtb, cpu_offs, "reg", reg_prop);
+ if (err < 0) {
+ ERROR ("FDT: write to \"%s\" property of node at offset %i failed\n",
+ "reg", cpu_offs);
+ return err;
+ }
+
+ err = fdt_setprop_string(dtb, cpu_offs, "device_type", "cpu");
+ if (err < 0) {
+ ERROR ("FDT: write to \"%s\" property of node at offset %i failed\n",
+ "device_type", cpu_offs);
+ return err;
+ }
+
+ err = fdt_setprop_string(dtb, cpu_offs, "enable-method", "psci");
+ if (err < 0) {
+ ERROR ("FDT: write to \"%s\" property of node at offset %i failed\n",
+ "enable-method", cpu_offs);
+ return err;
+ }
+
+ return cpu_offs;
+}
+
+/******************************************************************************
+ * fdt_add_cpus_node() - Add the cpus node to the DTB
+ * @dtb: pointer to the device tree blob in memory
+ * @afflv0: Maximum number of threads per core (affinity level 0).
+ * @afflv1: Maximum number of CPUs per cluster (affinity level 1).
+ * @afflv2: Maximum number of clusters (affinity level 2).
+ *
+ * Iterate over all the possible MPIDs given the maximum affinity levels and
+ * add a cpus node to the DTB with all the valid CPUs on the system.
+ * If there is already a /cpus node, exit gracefully
+ *
+ * A system with two CPUs would generate a node equivalent or similar to:
+ *
+ * cpus {
+ * #address-cells = <2>;
+ * #size-cells = <0>;
+ *
+ * cpu0: cpu@0 {
+ * compatible = "arm,armv8";
+ * reg = <0x0 0x0>;
+ * device_type = "cpu";
+ * enable-method = "psci";
+ * };
+ * cpu1: cpu@10000 {
+ * compatible = "arm,armv8";
+ * reg = <0x0 0x100>;
+ * device_type = "cpu";
+ * enable-method = "psci";
+ * };
+ * };
+ *
+ * Full documentation about the CPU bindings can be found at:
+ * https://www.kernel.org/doc/Documentation/devicetree/bindings/arm/cpus.txt
+ *
+ * Return the offset of the node or a negative value on error.
+ ******************************************************************************/
+
+int fdt_add_cpus_node(void *dtb, unsigned int afflv0,
+ unsigned int afflv1, unsigned int afflv2)
+{
+ int offs;
+ int err;
+ unsigned int i, j, k;
+ u_register_t mpidr;
+ int cpuid;
+
+ if (fdt_path_offset(dtb, "/cpus") >= 0) {
+ return -EEXIST;
+ }
+
+ offs = fdt_add_subnode(dtb, 0, "cpus");
+ if (offs < 0) {
+ ERROR ("FDT: add subnode \"cpus\" node to parent node failed");
+ return offs;
+ }
+
+ err = fdt_setprop_u32(dtb, offs, "#address-cells", 2);
+ if (err < 0) {
+ ERROR ("FDT: write to \"%s\" property of node at offset %i failed\n",
+ "#address-cells", offs);
+ return err;
+ }
+
+ err = fdt_setprop_u32(dtb, offs, "#size-cells", 0);
+ if (err < 0) {
+ ERROR ("FDT: write to \"%s\" property of node at offset %i failed\n",
+ "#size-cells", offs);
+ return err;
+ }
+
+ /*
+ * Populate the node with the CPUs.
+ * As libfdt prepends subnodes within a node, reverse the index count
+ * so the CPU nodes would be better ordered.
+ */
+ for (i = afflv2; i > 0U; i--) {
+ for (j = afflv1; j > 0U; j--) {
+ for (k = afflv0; k > 0U; k--) {
+ mpidr = ((i - 1) << MPIDR_AFF2_SHIFT) |
+ ((j - 1) << MPIDR_AFF1_SHIFT) |
+ ((k - 1) << MPIDR_AFF0_SHIFT) |
+ (read_mpidr_el1() & MPIDR_MT_MASK);
+
+ cpuid = plat_core_pos_by_mpidr(mpidr);
+ if (cpuid >= 0) {
+ /* Valid MPID found */
+ err = fdt_add_cpu(dtb, offs, mpidr);
+ if (err < 0) {
+ ERROR ("FDT: %s 0x%08x\n",
+ "error adding CPU",
+ (uint32_t)mpidr);
+ return err;
+ }
+ }
+ }
+ }
+ }
+
+ return offs;
+}
diff --git a/docs/about/maintainers.rst b/docs/about/maintainers.rst
index a628704..50abc81 100644
--- a/docs/about/maintainers.rst
+++ b/docs/about/maintainers.rst
@@ -64,8 +64,6 @@
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
:M: Javier Almansa Sobrino <Javier.AlmansaSobrino@arm.com>
:G: `javieralso-arm`_
-:M: Jack Bond-Preston <Jack.Bond-Preston@arm.com>
-:G: `jackbondpreston-arm`_
:F: /
Software Delegated Exception Interface (SDEI)
@@ -648,6 +646,5 @@
.. _madhukar-Arm: https://github.com/madhukar-Arm
.. _john-powell-arm: https://github.com/john-powell-arm
.. _raghuncstate: https://github.com/raghuncstate
-.. _jackbondpreston-arm: https://github.com/jackbondpreston-arm
.. _Project Maintenance Process: https://developer.trustedfirmware.org/w/collaboration/project-maintenance-process/
diff --git a/docs/components/cot-binding.rst b/docs/components/cot-binding.rst
index 46915db..4f8c8b7 100644
--- a/docs/components/cot-binding.rst
+++ b/docs/components/cot-binding.rst
@@ -279,6 +279,10 @@
Description: Contains various non-volatile counters present in the platform.
PROPERTIES
+ - id
+ Usage: Required for every nv-counter with unique id.
+
+ Value type: <u32>
- reg
Usage:
@@ -301,21 +305,21 @@
.. code:: c
- non-volatile-counters {
+ non_volatile_counters: non_volatile_counters {
compatible = "arm, non-volatile-counter";
#address-cells = <1>;
#size-cells = <0>;
- counters {
- trusted-nv-counter: trusted_nv_counter {
- reg = <TFW_NVCTR_BASE>;
- oid = TRUSTED_FW_NVCOUNTER_OID;
- };
- non_trusted_nv_counter: non_trusted_nv_counter {
- reg = <NTFW_CTR_BASE>;
- oid = NON_TRUSTED_FW_NVCOUNTER_OID;
+ trusted-nv-counter: trusted_nv_counter {
+ id = <TRUSTED_NV_CTR_ID>;
+ reg = <TFW_NVCTR_BASE>;
+ oid = TRUSTED_FW_NVCOUNTER_OID;
+ };
- };
+ non_trusted_nv_counter: non_trusted_nv_counter {
+ id = <NON_TRUSTED_NV_CTR_ID>;
+ reg = <NTFW_CTR_BASE>;
+ oid = NON_TRUSTED_FW_NVCOUNTER_OID;
};
};
diff --git a/include/common/fdt_fixup.h b/include/common/fdt_fixup.h
index 0248de9..29d8b3a 100644
--- a/include/common/fdt_fixup.h
+++ b/include/common/fdt_fixup.h
@@ -1,5 +1,5 @@
/*
- * Copyright (c) 2019, ARM Limited and Contributors. All rights reserved.
+ * Copyright (c) 2019-2020, ARM Limited and Contributors. All rights reserved.
*
* SPDX-License-Identifier: BSD-3-Clause
*/
@@ -11,5 +11,7 @@
int dt_add_psci_cpu_enable_methods(void *fdt);
int fdt_add_reserved_memory(void *dtb, const char *node_name,
uintptr_t base, size_t size);
+int fdt_add_cpus_node(void *dtb, unsigned int afflv0,
+ unsigned int afflv1, unsigned int afflv2);
#endif /* FDT_FIXUP_H */
diff --git a/plat/arm/common/sp_min/arm_sp_min_setup.c b/plat/arm/common/sp_min/arm_sp_min_setup.c
index 6100b78..270093c 100644
--- a/plat/arm/common/sp_min/arm_sp_min_setup.c
+++ b/plat/arm/common/sp_min/arm_sp_min_setup.c
@@ -186,7 +186,7 @@
* Do initial security configuration to allow DRAM/device access
* (if earlier BL has not already done so).
*/
-#if RESET_TO_SP_MIN
+#if RESET_TO_SP_MIN && !JUNO_AARCH32_EL3_RUNTIME
plat_arm_security_setup();
#if defined(PLAT_ARM_MEM_PROT_ADDR)